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GET /api/1.1/patches/2224959/?format=api
{ "id": 2224959, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2224959/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/20260420030532.2541-5-zixing.liu@canonical.com/", "project": { "id": 15, "url": "http://patchwork.ozlabs.org/api/1.1/projects/15/?format=api", "name": "Ubuntu Kernel", "link_name": "ubuntu-kernel", "list_id": "kernel-team.lists.ubuntu.com", "list_email": "kernel-team@lists.ubuntu.com", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<20260420030532.2541-5-zixing.liu@canonical.com>", "date": "2026-04-20T03:05:32", "name": "[SRU,J/N:linux,4/4] selftests/powerpc: Detect taint change in mitigation patching test", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "24e72f380338fc6e4965159ea1d79524e42254c3", "submitter": { "id": 90901, "url": "http://patchwork.ozlabs.org/api/1.1/people/90901/?format=api", "name": "Zixing Liu", "email": "zixing.liu@canonical.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/20260420030532.2541-5-zixing.liu@canonical.com/mbox/", "series": [ { "id": 500544, "url": "http://patchwork.ozlabs.org/api/1.1/series/500544/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ubuntu-kernel/list/?series=500544", "date": "2026-04-20T03:05:28", "name": "Backport upstream patches for powerpc kselftests", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/500544/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2224959/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2224959/checks/", "tags": {}, "headers": { "Return-Path": "<kernel-team-bounces@lists.ubuntu.com>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (4096-bit key;\n unprotected) header.d=canonical.com header.i=@canonical.com\n header.a=rsa-sha256 header.s=20251003 header.b=JvVV/uYI;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com\n (client-ip=185.125.189.65; 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charset=\"utf-8\"", "Content-Transfer-Encoding": "base64", "Errors-To": "kernel-team-bounces@lists.ubuntu.com", "Sender": "\"kernel-team\" <kernel-team-bounces@lists.ubuntu.com>" }, "content": "From: Michael Ellerman <mpe@ellerman.id.au>\n\nCurrently the mitigation patching test errors out if the kernel is\ntainted prior to the test running.\n\nThat causes the test to fail unnecessarily if some other test has caused\nthe kernel to be tainted, or if a proprietary or force module is loaded\nfor example.\n\nInstead just warn if the kernel is tainted to begin with, and only\nreport a change in the taint state as an error in the test.\n\nSigned-off-by: Michael Ellerman <mpe@ellerman.id.au>\n---\n .../selftests/powerpc/security/mitigation-patching.sh | 8 ++++----\n 1 file changed, 4 insertions(+), 4 deletions(-)", "diff": "diff --git a/tools/testing/selftests/powerpc/security/mitigation-patching.sh b/tools/testing/selftests/powerpc/security/mitigation-patching.sh\nindex 00197acb7ff1..971793e93ba9 100755\n--- a/tools/testing/selftests/powerpc/security/mitigation-patching.sh\n+++ b/tools/testing/selftests/powerpc/security/mitigation-patching.sh\n@@ -36,8 +36,7 @@ fi\n \n tainted=$(cat /proc/sys/kernel/tainted)\n if [[ \"$tainted\" -ne 0 ]]; then\n- echo \"Error: kernel already tainted!\" >&2\n- exit 1\n+ echo \"Warning: kernel already tainted! ($tainted)\" >&2\n fi\n \n mitigations=\"barrier_nospec stf_barrier count_cache_flush rfi_flush entry_flush uaccess_flush\"\n@@ -65,9 +64,10 @@ fi\n echo \"Waiting for timeout ...\"\n wait\n \n+orig_tainted=$tainted\n tainted=$(cat /proc/sys/kernel/tainted)\n-if [[ \"$tainted\" -ne 0 ]]; then\n- echo \"Error: kernel became tainted!\" >&2\n+if [[ \"$tainted\" != \"$orig_tainted\" ]]; then\n+ echo \"Error: kernel newly tainted, before ($orig_tainted) after ($tainted)\" >&2\n exit 1\n fi\n \n", "prefixes": [ "SRU", "J/N:linux", "4/4" ] }